General description This retractable key ring set includes 4 pieces designed for holding business cards, student IDs, bus cards, and more. Each key ring features a durable construction with a metal climbing hook and a plastic case for a round reel, making it versatile for various uses. Technical specifications Length: 16 cm / 6.3 in Width: 4 cm / 1.58 in Steel Rope Length: 64 cm / 25 in Thickness: 1.2 cm / 0.47 in Maximum Suspension Weight: 220 g Usage You can use this retractable keychain to hang keys, company ID cards, or other small tools. To use, attach the key fob to your belt, place the key on the fob, and extend it to open doors. When not in use, the key ring automatically retracts to prevent loss. Other information Portable design for easy carrying and storage in bags or pockets Includes 4 keychains for convenience and sharing